Security Engineering at the Deepest Windows Level
We design, develop, and secure software components that protect corporate data inside Windows ecosystems — from kernel drivers to Active Directory and NAS devices.
Security Engineering at the Deepest Windows Level
We design, develop, and secure software components that protect corporate data inside Windows ecosystems — from kernel drivers to Active Directory and NAS devices.
Who We Are
Simpity is a boutique security engineering team specializing in Windows internals and secure system design. Since 2007, we've been helping software vendors and enterprise engineering teams design and build protection components for data security in complex Windows-based infrastructures.
We do both — research and engineering: we design new protection modules and help existing teams adapt their products to continuous Microsoft changes. Our engineers work where documentation ends — inside the kernel, LSASS, AD, and NAS subsystems.
Three things only a handful of teams in the world can do
(These are the layers where most products break — and where we start.)
Reverse-engineering undocumented Windows internals
Understanding and adapting to LSASS, Kerberos, AD, and file-system changes.
Intercepting and securing system behavior at kernel level
Building drivers and hooks that stop malicious or destructive actions before the OS executes them.
Scaling and stabilizing enterprise-grade security across massive AD environments
Making monitoring, audit, and protection work smoothly in infrastructures with 500+ domain controllers and 600K+ users.
What We Do
We design and build Windows security components that control access, detect threats, and protect information — both on-prem and in hybrid infrastructures.
Core expertise
Architecture, development, and optimization of system components and drivers in protected Windows environments.
Design of modules for data access control, audit, and real-time threat blocking.
Detection and interception of advanced attacks (Golden Ticket, DCSync, Forged PAC, etc.) at kernel and AD levels.
Enterprise-scale AD monitoring and anomaly detection without domain controller overload.
Secure NAS and file-system tracking with minimal performance impact.
Adaptation and validation of components after Microsoft updates, ensuring long-term stability.
Full Microsoft code signing and security review for all delivered components.
Where We Add Value
Security Product Vendors (IAM, DLP, Insider Risk, Threat Detection)
We design and extend Windows modules that enforce access control, identity protection, and data confidentiality — from driver to directory level.
Enterprise Integrators and Software Vendors
We embed security architecture and monitoring layers into enterprise systems — protecting data across distributed AD and NAS infrastructures.
Security Startups and Innovation Teams
We help build and transform prototypes into enterprise-grade security products — with code signing, compliance, and secure architecture design.
Why Teams Choose Simpity
We design protection, not just patch failures. End-to-end creation of secure Windows components — architecture, code, validation.
Reverse-engineering expertise. We analyze undocumented Windows internals and adapt faster than vendors can react.
True engineering depth. Kernel, AD, NAS — not surface-level integrations.
Verified by Microsoft. Drivers and libraries pass code-signing and security checks.
Enterprise-grade safety. Built for large-scale AD environments and compatible with Credential Guard / HVCI.
Secure development lifecycle. All components undergo internal and third-party vulnerability testing (Snyk, etc.).
No vendor lock-in. Full code and documentation transfer.
Selected Examples
AD Monitoring at Scale
Auditing and managing across 500+ domain controllers, file servers and 600K users with minimal performance overhead.
Attack Detection and Protection
Detecting and blocking advanced attack chains (Golden Ticket, DCSync, Forged PAC) in real time.
Secure File Activity Monitoring
Real-time tracking for NetApp / EMC storages integrated into DLP systems without extra network load.
Adaptive Component Updates
Re-engineering of security modules after major Windows version changes — restoring full stability within hours.
Technology Stack
Explore Our Complete Portfolio
Visit our main website to learn more about Simpity's full range of software development services, technologies, and successful project implementations.
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